Area code 664
Area code 664 in the North American Numbering Plan covers Montserrat, a tiny British Overseas Territory in the Caribbean. The 664 telephone area code, standing for "MNI," was created during a split from the original 809 area code, which began permissive dialing 1 July 1996 and ended 1 June 1997.
A domestic call within Montserrat is seven digits. A call from another North American Numbering Plan country (such as the United States or Canada) requires 1-664- and the seven-digit phone number, in the same format as a domestic toll call.
At one time the small island of Montserrat was able to get by with only using four-digit phone numbers internally, as the first three digits after the former 809 area code were the same for everyone (664). As of May 2011, Montserrat has seven-digit numbers beginning with 236, 349, 410, 411, 412, 413, 415, 491, 492, 493, 494, 495, 496, 664, and 724.
- North American Numbering Plan Administrator
- List of exchanges from AreaCodeDownload.com, 664 Area Code
|Montserrat area codes: 664|
|North: 268, 869|
|West: Caribbean Sea||Area code 664||East: 268|
|South: Country code +590 in Guadeloupe|
|Saint Kitts and Nevis area codes: 869|
|Antigua and Barbuda area codes: 268|
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